<script setup lang="ts">
import { delRoleUserAPI, getRoleDetailAPI, getRoleListAPI, getRoleUserAPI, getTreeListAPI } from '@/apis/system';
import type { AuthData, Role, RoleUser } from '@/types/system';
import { onMounted, ref } from 'vue';
import user from '@/assets/user.svg'
import userActive from '@/assets/user-active.svg'
import { ElMessage, type ElTree } from 'element-plus';
import router from '@/router';

// 1. 获取当前系统中所有的角色列表
const roleList = ref<Role[]>([])
const getRoleList = async ()=>{
  const res = await getRoleListAPI()
  roleList.value = res.data
  // 第一次获取
  getRoleUserList(roleList.value[activeIndex.value].roleId!)
}

// 2. 角色列表点击激活交互
const activeIndex = ref(0)
const changeRole = (index: number)=>{
  activeIndex.value = index
  // 2.1 获取激活的角色的角色ID
  const roleId = roleList.value[index].roleId
  getRoleDetail(roleId + '')
  getRoleUserList(roleId!)
}

// 3. 获取所有的权限列表
const authList = ref<AuthData[]>([])
const getAuthList = async ()=>{
  const res = await getTreeListAPI()
  authList.value = res.data
  addDisabled(authList.value)
}

// 4. 在数据对象中添加disabled属性
const addDisabled = (authArr: AuthData[])=>{
  authArr.forEach((auth: AuthData)=>{
    auth.disabled = true
    if(auth.children){
      addDisabled(auth.children)
    }
  })
}

// 5. 根据角色id获取角色详情(权限点和角色信息)
const getRoleDetail = async (roleId: string)=>{
  const res = await getRoleDetailAPI(roleId)
  // 5.1 遍历
  treeRef.value?.forEach((tree, index)=>{
    // @ts-expect-error
    tree.setCheckedKeys(res.data.perms[index])
  })
}

// 6. 高亮tree节点
const treeRef = ref<InstanceType<typeof ElTree>[]>()

// 7. tab切换
const activeName = ref('tree')  

// 8. 获取当前角色下的所有成员
const roleUserList = ref<RoleUser[]>([])
// 封装获取当前角色下的成员的方法
const getRoleUserList = async (roleId: number) => {
  const res = await getRoleUserAPI(roleId)
  roleUserList.value = res.data.rows
}

// 9. 触发编辑和删除
const handleCommand = (command: string, roleId: number)=>{
  if (command === 'del'){
    delRole(roleId)
  }
  if (command === 'edit'){
    router.push(`/roleAdd?roleId=${roleId}`)
  }
}

const delRole = async (roleId: number)=>{
  await delRoleUserAPI(roleId)
  ElMessage({
    type: 'error',
    message: '删除角色成功'
  })
  activeIndex.value = 0
  await getRoleList()
  getRoleDetail(roleList.value[0].roleId + '')
}

onMounted(async ()=>{
 await getRoleList()
 await getAuthList()
 // 一进入就获取一次角色所拥有的权限
 getRoleDetail(roleList.value[0].roleId! + '')
})
</script>

<template>
  <div class="role-container">
    <!-- 左侧 -->
    <div class="left-wrapper">
      <div class="role-item" :class="{ active: activeIndex === index }" v-for="(role, index) in roleList"
        :key="role.roleId" @click="changeRole(index)">
        <el-tooltip effect="dark" :content="role.remark" placement="top">
          <div class="role-info">
            <img :src="activeIndex===index ? userActive : user" class="icon" />
            {{ role.roleName }}
          </div>
        </el-tooltip>
        <div class="more">
          <el-dropdown @command="handleCommand($event, role.roleId!)">
            <img src="@/assets/more.svg" class="icon" />
            <template #dropdown>
              <el-dropdown-menu>
                <el-dropdown-item command="edit">编辑角色</el-dropdown-item>
                <el-dropdown-item command="del">删除角色</el-dropdown-item>
              </el-dropdown-menu>
            </template>
          </el-dropdown>
        </div>
      </div>
      <el-button class="addBtn" size="small" @click="$router.push('/roleAdd')">添加角色</el-button>
    </div>
    <!-- 右侧 -->
    <div class="right-wrapper">
      <!-- 选项卡 -->
      <el-tabs v-model="activeName">
        <el-tab-pane label="功能权限" name="tree">
          <div class="tree-wrapper">
            <div v-for="auth in authList" :key="auth.id" class="tree-item">
              <div class="tree-title"> {{ auth.title }} </div>
              <el-tree ref="treeRef" :data="auth.children" :props="{ label: 'title' }" default-expand-all show-checkbox
                node-key="id" :check-strictly="false" />
            </div>
          </div>
        </el-tab-pane>
        <el-tab-pane :label="`成员列表(${roleUserList.length})`" name="member">
          <div class="user-wrapper">
            <el-table :data="roleUserList">
              <el-table-column type="index" width="250" label="序号" />
              <el-table-column prop="name" label="员工姓名" />
              <el-table-column prop="userName" label="登录账号" />
            </el-table>
          </div>
        </el-tab-pane>
      </el-tabs>
    </div>
  </div>
</template>

<style scoped lang="scss">
.role-container {
  display: flex;
  font-size: 14px;
  background-color: #fff;

  .left-wrapper {
    width: 200px;
    border-right: 1px solid #e4e7ec;
    padding: 4px;
    text-align: center;

    .role-item {
      position: relative;
      height: 56px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 20px;
      cursor: pointer;

      &.active {
        background: #edf5ff;
        color: #4770ff;
      }
    }

    .role-info {
      display: flex;
      align-items: center;

      .icon {
        margin-right: 10px;
        width: 20px;
      }
    }

    .more {
      display: flex;
      align-items: center;

      .icon {
        width: 15px;
      }
    }

    .addBtn {
      width: 100%;
      margin-top: 20px;
    }
  }

  .right-wrapper {
    flex: 1;

    .tree-wrapper {
      display: flex;
      justify-content: space-between;

      .tree-item {
        flex: 1;
        border-right: 1px solid #e4e7ec;
        padding: 0px 4px;
        text-align: center;

        .tree-title {
          background: #f5f7fa;
          text-align: center;
          padding: 10px 0;
          margin-bottom: 12px;
        }
      }
    }

    ::v-deep .el-tabs__nav-wrap {
      padding-left: 20px;
    }

    .user-wrapper {
      padding: 20px;
    }
  }
}
</style>